Presents an introduction to lakes, explaining what they are and how they form, discussing the various uses of lake water, and providing information about dams, lake activities, and protection efforts.

Can you imagine living and working under the sea? It's the reality for some scientists, who inhabit laboratories deep at the bottom of the ocean. Research on the Edge - Ocean Lab is a gripping look at the daily lives of these scientists, and the vital research they carry out in extreme conditions. Discover the difficulties of setting up an ocean lab and the challenges of supplying equipment and necessities to the workers. Children can read about the...

Answers common questions about allergies.

Provides a simple explanation of the terms transparent, opaque, and translucent, and provides examples of common objects to help illustrate each concept.

"This fascinating series takes a very simple look at animal classifications, with each book focussing on a different group of animal. This book is about birds: what they do, how they behave, and how these characteristics are different from other groups of animals. Beautifully illustrated with colorful photographs, the book shows many examples of different types of birds in their natural environment."--

Describes a truck driver's rig and some of the problems he encounters as he picks up and delivers his cargo.

This book is about all fish: what they do, how they behave, and how these characteristics are different from other groups of animals. Beautifully illustrated with colorful photographs, the book shows many examples of different types of fish in their natural environment.

"This fascinating series takes a very simple look at animal classifications, with each book focussing on a different group of animal. This book is about invertebrates: what they do, how they behave, and how these characteristics are different from other groups of animals. Beautifully illustrated with colorful photographs, the book shows many examples of different types of invertebrates in their natural environment."--

"Scientists first started talking about sending a robot to orbit Saturn in the 1980s. However, it wasn't until 1997 that the Cassini Probe launched. Readers learn not only about how the probe was built, but also about the process of planning such an important, complicated endeavor. Full-color photographs and illustrations supplement the main content's explanation of what Cassini learned as it traveled around Saturn and the cool robotic features that...

Describes the inner workings of various parts of the human body, including the heart, lungs, and skeleton.